Braking system



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, UNITED STATES PATENT OFFICE.

' v'INCnN'I` BENDIX, or CHICAGO, ILLINOIS, AssIGNon Iro BnNnIx BRAKE COMPANY,

or CHICAGO, ILLINoIs, A ConPoaA'rIoN or ILLnIoIs.

BEARING SYSTEM.

Application led August 25,1924. Serial No. 783,895.

v To all whom it may concern.'

Be it known that I, VINCENT BENDIX, a citizen .of the United States, residin at Chicago, in the county of Cook and tate 6 of Illinois, have invented certain new and useful Improvements ina Braking System, of which the Vfollowing is a specification.

The invention has for its object the provision of an Aimproved and simplified brak- 10 ing system for four-wheel motor vehicles, which consists essentially in the combination of three centrally-controlled brakes operating on the two front wheels and the power transmission line for braking all four l5 wheels.

More particularly, the invention vcontemplates a central control for applying 'the v"several brakes simultaneously, a plurality of means for operating the control member, arrangements'whereby the several operating means may.V be manipulated vseparately and-V independently oi each other, and the provision of specific mechanism which may be employedjto advantage in utilizing the severalv features of the lnvention. In 'the'a'ccompanying drawings and in the following detailed description based thereon I have shown what I consider to be the most desirable` construction and arrangement of parts forcarrying out the purposes of the invention. Obviously, however, other and varied me-ans," arrangements and modes of operation-may be employed within the spirit, scope and contemplation of the invention, wherefore the drawings and description aretoj be considered merely as illustrative and not'in any unnecessarily limitingsense, and', the claims are to be construed with this reservation in mind.

The drawings comprise a perspective view 'of the braking system, which is"designated 'Fi.1."' .s

'. will Ybe observed that the braking system includes two front wheel brakes 10 and 11 and a transmissionbrake 12. The brakes versally mounted control rods 13 which are oscillated by. rods 14 connected to torque arms 15 on the rods V13. The rods 14 are in turn connectedv with a cross rockshaft 16 by torque arms 17 on the shaft. It will be understood that when the shaft 16 is oscillated, the brakes 10 and 11 will be applied through the connections described. AThe transmission brakes 10, 11 and 12 through a rod 24 which brake 12 is also operated from the crossshaft 16 by means of a torque arm 18 which is connected with an' operative portion -19 of the brake.

A service' pedal 2O operates the. three brakes 10, 11 and 12 through a rod 21 which engages a slot in, and is sldably connected with, a torque arm 22 on the shaft 16. -An emergency lever 23 also operates the three connects with a torque arm 25 on the shaft 16. The rod 24 is secured against longitudinal movement with respect to the arm 25, but is slidable in the block' 26, carried by the lever. VThe adjusting nut 27, on the free threaded end of the rod 24, provides an abutment against which the block engages, and serves to transmit the operative movement of the emergency lever to the rod and thus to the rockshaft 16.

The slidable mounting of the. operating rods 21 and 24, in the manner indicated, provides an overrunning relation between the two brake operating means, tha-t is to say, it permits manipulation of. the service 3 pedalto set the brakes, without disturbing the emergency lever, and conversely, manipulation of the emergency lever without aiacing the normal position of the service e a .y p Where reference is made herein lto a transmission brake it is to be understood as including any means applied to, and at any point `along, the power transmission line for retarding the movement of the vehicle. I- claim:

1. A braking system for four-wheel motor vehicles, consisting of a brake on each front wheel, a brake on the transmission, a control for applying the brakes simultaneously, a service pedal connected to said control, an emergency' lever connected to said conftrol, and means permitting the manipulation of the pedal and lever independently of each other. A

2. A braking system for four-wheel motor vehicles, consisting of a brake on each front wheel, a brake on the transmission, a control, connections between said control and the brakes, a service pedal, and an emergency lever, the said pedal and lever being-yieldingly connected to said control to permit app ication of the brakes througheither without affecting the other. 11

3. A braking system for four-Wheel motor vehicles, consisting of a brake on each front wheel, a brake on the transmission, a. control, connections between said control and 'the brakes, a service pedal, and an emergency lever, the said pedal and lever being connected to operate upon, but not `to be operated by, said control.

4. A braking system for four-Wheel .motor vehicles, consisting of a brake on each front Wheel, a brake on the transmission, a rocksliaft, connections between the brakes and the rokshaft, a service pedal and an emerency lever both connected to the rockshafl or rocking the same.

5. A braking system for four-wheel motor vehicles, conslsting of a bra-ke on each front Wheel, a brake on the transmission, a rock- A shaft, connections between the brakes and gency lever both connected to the rockshaft- ,for rocking the same, the last-mentioned connections being mountedin overrunning relation to permit manipulation of each without affecting the other.

, 6. A braking system for four-wheel motor vehicles, consisting of a brake on each front wheel, a brake on the transmission, a control, connections between said control and the brakes, and foot fand hand levers operable separately and independently through said control to apply the brakes.

In testimony whereof I have hereunto signed my name.

VINCENT BENDIX. 

